It is a fully synchronized Overdrive transmission including reverse. This 1968 3925660 main case has a P8R04 assembly date and was cast in a number-2 mold. All fees and programming subject to change. If youve installed your overdrive and the trans wont shift right, read that story and check out your adjustment. For the empty truck which never tows and is never driven above 55 — 60 mph the stock transmission is good, but for everyone else the extra gears will give great performance gains that will actually pay for themselves many times over the life of the vehicle. The Gear Vendors comes with a 30 day money back guarantee so you know you will be happy with everything you get from us and how it installs and drives.
Unless specifically noted to the contrary herein, vehicles equipped with Chevrolet Performance Parts may not meet Federal Motor Vehicle Safety Standards and emissions regulations and should not be operated on public roads. All T56 transmissions installed in late-model cars use an electronic pickup to measure speed, but Nationals T56 is designed to use the standard speedo cable and T5 manual transmissions drive and driven gears. All fees and programming subject to change. Further Muncie identification 3 Muncie 4 speeds were offered. See for details and limitations. These Muncies have the same serial number format, minus the gear ratio designation, so a spline and gear tooth count must be done. Cargo and load capacity limited by weight and distribution.
Complementing your Chevrolet Performance crate engine with a factory-engineered new or remanufactured performance transmission is a cinch with our comprehensive lineup of automatic transmissions, torque converters and installation kits. Most of the books and articles I have seen, combined with some bits of Internet folklore, tend to have the same flaws because most information is copied and simply edited and resubmitted. . Cargo and load capacity limited by weight and distribution. The rear mount on the Richmond six-speed will require a custom-fabricated crossmemberinstalled approximately 6 inches farther backor its often possible to relocate the existing crossmember rearward.
See for details and limitations. Reverse gears are helical cut and are located in the extension housing. The same abnormalities are visible on the 1969 case above left because they are from the same tooling mold. The reason for the overlap is simple. Reverse gears are straight cut and are located in the main transmission case.
The basic Turbo-Hydramatic spawned two variants, the , and the. Stamped serial numbers for all 1969 model year cases also included the year designator. Or maybe its because theyre hard to find used in the scrap yards and many people dont want to add a computer just to control the transmission. Also, the reverse lever on the Muncie units is mounted in the extension housing, while the Saginaw reverse lever is mounted in the side cover Locate the serial number to differentiate 1969 and up Muncie transmissions. One such swap involves installing a Richmond four-, five-, or even six-speed manual transmission. Children are safer when properly secured in a rear seat in the appropriate child restraint.
Its overall dimensions are very close to either of those gearboxes, so the Richmond four-speed can be swapped into any car in which a 71-and-later Muncie or Super T-10 was optional. By the start of 1969 these cases and all future cases had the drain plug boss drilled and threaded. There is much custom fabrication work involved in a six-speed swap as well as some additional high-performance hardware that youll need, including purchasing or fabricating a custom mounting bracket and modifying the stock clutch pedal for the hydraulic-clutch master cylinder, modifying or fabricating a complete transmission crossmember, relocating the shifter hole in the floor of the car, shortening the driveshaft and possibly changing its yoke, and even installing a small-diameter starter and having custom headers built for clearance. Your actual range will vary based on several factors including temperature, terrain and driving conditions. Case castings numbers are 13-51 or 13-52. The 4L80-E Transconversion kit features its own computer with software that is custom-tuned to your vehicles specifications, providing the proper shift points, shift quality, and lockup torque converter function. Parts List 54 Aluminum case, end-loaded unit with an integral bell housing.
This transmission is found in performance applications. In some cases we can provide good used parts, these are good take out parts that are inspected, just give us a call toll free 800-216-1632 and let us help save you some money! This is April 23, 1972, M21 ratio. Cargo and load capacity limited by weight and distribution. In-exchange for Ford's 10-speed transmission, General Motors will let Ford use its 9-speed transmission for front-wheel drive applications; Ford ultimately declined use of the 9T. Another benefit of these overdrive transmissions was that they featured a much deeper First-gear ratio, giving improved acceleration off the line.
Your actual range may vary based on several factors including temperature, terrain, and driving technique. This means the Muncie was assembled December 13, 1967, for the 1968 model year. This is a good example of a bad restamp or fake. Most of these castings look very rough. The 1963 plate had more material surrounding the reverse idler bore. Chevrolet Performance customers are responsible for ensuring their use of Chevrolet Performance complies with applicable federal, state, and local laws, regulations, and ordinances. A gear ratio is a combination of two ratios multiplied together.
Your actual range may vary based on several factors, including temperature, terrain and driving technique. The transmission case has various codes including the casting code and the serial number. This is one of those stories that youll want to add to your ever-expanding files of Bow Tie knowledge. The first Muncie copied the smaller bearing and retainer combination of the T10. This transmission has two different top covers, cast iron was used from 1968 to 1987, aluminum top covers were installed between 1988 and 1991.
Click here to see all Chevrolet vehicles'. Flipping the 3-4 cover lever over lets them grab with a straight pull back because it moves 3rd to the 4th gear position on the pattern. Your actual range may vary based on several factors including temperature, terrain, and driving technique. Children are safer when properly secured in a rear seat in the appropriate child restraint. Select the parts you require from the following list and give us a call. It is unique to the Muncie and was used until the very end of production in all main cases with the exception of the 3831704 case.